1,4-Dideoxy-1,4-imino-D-ribitol 105990-41-8 3,4-Pyrrolidinediol, 2-(hydroxymethyl)-, (2R,3R,4S)- 3,4-Pyrrolidinediol, 2-(hydroxymethyl)-, [2R-(2a,3b,4b)]- AIDS-000359 AIDS000359 DRib